Timeless beauty of flagstone.

Available in two nature inspired shades, Rivenstone combines the durability of concrete with the character and flexibility of natural stone. It's an ideal choice for those looking to add enduring quality and timeless appeal to walkways, courtyards, pool surrounds, terraces and patios.




Shapes & Sizes

12 x 12

30.0 x 30.0 x 4.5cm
11.7" x 11.7" x 1.8"

18 x 18

45.0 x 45.0 x 4.5cm
17.6" x 17.6" x 1.8"

12 x 24

60.0 x 30.0 x 4.5cm
23.4" x 11.7" x 1.8"

18 x 24

60.0 x 45.0 x 4.5cm
23.4" x 17.6" x 1.8"

24 x 24

60.0 x 60.0 x 4.5cm
23.4" x 23.4" x 1.8"

Design Combinations

 Whether you are planning on having a paver patio installed or upgrading your driveway with paving stones, adding a border or accent paver will surely make your project unique! Unilock has the variety you need to create the perfect combination. See for yourself by viewing our images to the right!

Create Your Own

Jointing Compound - Small detail, Big difference

 Add the finishing touches to your project with a sand color that best suits your style. A different color can have a significant impact on the overall look and feel of your landscape project. Test the options below to the right to see the joints in the image on the left change.   

Black Sand
Tan Sand
Grey Sand

Learn About Rivenstone

Rivenstone Torture Test


Reala Surface Technology iconReala Surface Technology

Ultra-realistic textures cast from actual natural stone, brick and cobblestones.


Pedestrian iconPedestrian

Surface Texture


  Sq. Ft. Bndl. Sq. Ft. Unit Sectn. Bndl. Layers Bndl. Ln. Ft. Unit (Sailor) Sq. Ft. Ln. Ft. (Soldier) Ln. Ft. Bndl. (Sailor) Ln. Ft. Bndl. (Soldier) Units Sq. Ft. Units Ln. Ft. Lbs. Bndl. Units Bndl.
12 x 12 Bundle (4cm) 36 1 - - - - - - 1 - 699 36
12 x 24 Bundle (4cm) 36 2 - - - - - - 0.50 - 699 18
18 x 18 Bundle (4cm) 81 2.25 - - - - - - 0.44 - 1525 36
18 x 24 Bundle (4cm) 54 3 - - - - - - 0.33 - 1050 18
24 x 24 Bundle (4cm) 72 4 - - - - - - 0.25 - 1353 18

Additional Rivenstone™ Information

Rivenstone is packaged on a specially designed refundable skid. Sold in full bundles only. Do not use a vibratory plate compactor for the finalsurface compaction. Please review Polymeric Sand and Sealer Usage chart on the website. Product is not intended for vehicular applications.

 The elegance and charm of Rivenstone lies in its Reala flagstone surface texture and the rich colors of the EnduraColor surface. Cast from molds derived from quarried flagstone, each piece has a unique clefted appearance. The choice of multiple sizes adds to the sophistication of your final design.


Base Requirement & Bedding Course standard paver base specification or on open graded material for raised patios, terraces or concrete overlays. Do not use for vehicular applications.





Handling and InstallationThis product cannot be compacted with a plate tamper.  Use a hand mallet to make minor height adjustments. Care must be taken to avoid tossing stones so that they bang against each other. Damage to the surface appearance can happen if handled too rough. Both random and linear patterns are common. Install from multiple pallets for best color distribution.  Install with ¼ spacing between units.





Jointing Material and Joint Stabilization


·     Good: ordinary dry joint sand stabilized by a water-based or solvent based joint sand stabilizer (joint sand stabilizer sealer may make the surface slightly slippery).

·     Better: Unicare Polymeric Sand, Techniseal RG+, Alliance Gator XP

·     Best EasyPro is best especially for open-graded base applications.  Ensure  that  an  approximate  ¼

joint is maintained during installation so that adequate jointing material can fill the voids.


Special Note: Alliance Gator Max Polymeric Sand (overlays).  Make sure all proper Polymeric sand installation procedures are followed. See video at www.unilock.com.







·     Product must be cleaned with Techniseal Hardscape Cleaner or similar before sealing

·     Product may be sealed but it is not absolutely required

·     Unilock Unicare, Surebond, BP Pro and Techniseal sealers can be used. Select sealer on the basis of desired appearance.


Cleaners Any cleaner can be used but Techniseal Hardscape Cleaner is commonly used.


Special note -  When overlaying on concrete surfaces, be mindful that minor variances in paver thickness (+/- 2mm) may exist.  Therefore, if possible, a bedding course is recommended.

Special note - To avoid issues with height variance, do not use as a direct overlay on concrete

Want help calculating your order?
Use our interactive paver calculator to get quick, easy and accurate specifications for your project!

Paver Calculator

All measurements are nominal

Colors, product data, and availability are subject to change without notice. Please confirm all details with your local Unilock Dealer or call 1-800-UNILOCK (1-800-864-5625) for availability in your area. The colors shown should only be used as a guide. Final color selections should always be made from actual samples.